
Positions = Vector{
  Vector{0,0},
  Vector{100,0},
  Vector{130,0}
}
Speeds = Vector{
  Vector{0,0},
  Vector{0,40},
  Vector{0,55}
}
Masses = Vector{ 100000, 10000, 1000 }

Sizes = { nil, nil, nil }

Colors = {
  { 255, 255, 200 },
  { 150, 150, 255 },
  { 150, 150, 150 },
}
